8mm Aluminium Crimp Cap, (Silver) with Red PTFE/White Silicone/Red PTFE Septa, 1mm

Alternative to:
La-Pha-Pack: 08 03 0113, Chromacol: 8-AC-TST1, National: C4008-2A, Agilent: 5183-4490, Fisher: 11712418, VWR: 548-0038